curl "https://ssl.newsman.app/api/1.2/rest/your_user_id/your_api_key/list.updateProps.json?list_id=your-list-id&props[from_email]=from%20email%20here&props[from_name]=from%20name%20here&props[replyto_email]=reply%20to%20email%20address&props[replyto_name]=reply%20to%20name&props[list_secret]=list%20secret%20here&props[link_params_append]=link%20param%20here&props[send_rate_text]=ex:%20daily&props[after_unsubscribe_goto]=the%20responder%20page%20here"

<?php
 
// client can de downloaded from https://github.com/Newsman/newsman-api-php
require_once("Newsman/Client.php");
 
// you can get your API KEY, your newsman_user_id and list_id from My account -> API
$newsman_user_id = "your-username";
$api_key = "your-api-key";
$list_id = "your-list-id";
 
// key / value array, must contain the list props which must be updated 
$props = array(
 "from_email" => "from email here", /* ex: newsletter@newsmanapp.com */ 
 "from_name" => "from name here", /* ex: Newsman Newsletter */ 
 "replyto_email" => "reply to email address", /* Reply To Email address */ 
 "replyto_name" => "reply to name", /* Reply To Name */ 
 "list_secret" => "list secret here", /* A list secret (password). Used in some hashes computation */ 
 "link_params_append" => "link param here", /* A query string of params which will be appended to every url. Default is: "utm_term=nl-link&utm_source=nl-general&utm_content=##abonat_id_tld##&utm_medium=newsletter&utm_campaign=Adevarul-Newsletter-##date##" */ 
 "send_rate_text" => "ex: daily", /* Text describing the send rate of a newsletter, ex: daily or every friday, ... */ 
 "after_unsubscribe_goto" => "the responder page here" /* Url where user is redirected after he clicks the ##NEWSMAN:list_unsubscribe## link */ 
);
 
try {
	$client = new Newsman_Client($newsman_user_id, $api_key);
	$ret = $client->list->updateProps($list_id, $props);
} catch (Exception $e) {
	//do something with the error, eg: log $e->getMessage()
}
 
return $ret;
 
?>

import newsman
 
user_id = "your_user_id"
api_key = "your_api_key"
list_id = "your-list-id"
 
props =	{
  "from_email": "from email here",
  "from_name": "from name here",
  "replyto_email": "reply to email address",
  "replyto_name": "reply to name",
  "list_secret": "list secret here",
  "link_params_append": "link param here",
  "send_rate_text": "ex: daily",
  "after_unsubscribe_goto": "the responder page here"
}
 
client = newsman.Newsman(user_id, api_key)
client.list.updateProps(list_id,props)

RESTClient client = new RESTClient("your_user_id", "your_api_key");
 
var _props = new NameValueCollection();
    _props["from_email"] = "from email here";
    _props["from_name"] = "from name here";
    _props["replyto_email"] = "reply to email address";
    _props["replyto_name"] = "reply to name";
    _props["list_secret"] = "list secret here";
    _props["link_params_append"] = "link param here";
    _props["send_rate_text"] = "ex: daily";
    _props["after_unsubscribe_goto"] = "the responder page here";
 
var _params = new NameValueCollection();
    _params["list_id"] = "your-list-id";
    _params["props"] = _props;
 
var response = client.CallMethod("list", "updateProps", _params);